Introduction to Swan Lake: From November to April of the following year, groups of white swans rest here, hence the name. The water in the lake is pure, the scenery is beautiful, and the climate is pleasant; a variety of aquatic plants are planted near the shore of the lake. Every summer, lotus and water lilies are in full bloom, and weeping willows blow gently in the wind. Visitors stop to watch, enjoying themselves and forgetting to leave.